Received 13 July 2012Accepted 25 April 2013Published online 10 May 2013

Acknowledgments:

Funding for this research was provided by the Air Force Research Laboratory under Contract No. FA8650-10-C-2008. We thank Dr. Paul Hsu of Spectral Energies, LLC and Dr. William Lewis of the University of Dayton for many helpful discussions. We also acknowledge Dr. Barbara Harruff for the TEM image inspections of various nanoparticles and Stephen Danczyk for providing the 80-nm nanoparticles.